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Measurement of cross-sections of yttrium (n,xn) threshold reactions by means of gamma spectroscopy
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SYSNO ASEP 0486426 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Measurement of cross-sections of yttrium (n,xn) threshold reactions by means of gamma spectroscopy Author(s) Chudoba, Petr (UJF-V) RID, ORCID
Kilim, S. (PL)
Wagner, Vladimír (UJF-V) RID, ORCID, SAI
Vrzalová, Jitka (UJF-V) RID, ORCID
Svoboda, Ondřej (UJF-V) RID, ORCID, SAI
Majerle, Mitja (UJF-V) RID, ORCID, SAI
Štefánik, Milan (UJF-V) RID, ORCID, SAI
Suchopár, Martin (UJF-V)
Kugler, Andrej (UJF-V) RID, ORCID, SAI
Bielewicz, M. (PL)
Strugalska-Gola, E. (PL)
Szuta, M. (PL)
Hervas, D. (AT)
Herman, T. (CZ)
Geier, B. (AT)Number of authors 15 Source Title Physics Procedia, Gamma-2 Scientific Workshop on the Emission of Prompt Gamma-Rays in Fission and Related Topics, 59. - Amsterdam : Elsevier Science BV, 2014 - ISSN 1875-3892 Pages s. 114-118 Number of pages 5 s. Publication form Print - P Action 2nd Scientific Workshop on the Emission of Prompt Gamma-Rays in Fission and Related Topics Event date 24.09.2013 - 26.09.2013 VEvent location Belgrade Country RS - Serbia Event type WRD Language eng - English Country NL - Netherlands Keywords cross-section ; yttrium ; background subtraction Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders OECD category Nuclear physics Institutional support UJF-V - RVO:61389005 UT WOS 000380878100017 EID SCOPUS 84924813455 DOI 10.1016/j.phpro.2014.10.018 Annotation Neutron activation and gamma spectrometry are usable also for the determination of cross-sections of different neutron reactions. We have studied the cross-section of yttrium ( n,xn) threshold reactions using quasi mono-energetic neutron source based on the reaction on Li-7 target at Nuclear Physics Institute of ASCR in Rez. Yttrium ( n, xn) threshold reactions are suitable candidates for fast neutron field measurement by activation detectors. Fast neutron field monitoring is necessary already today at a wide range of accelerator facilities and will gain on importance in future fast reactors of generation IV, accelerator transmutation systems or fusion reactors. The knowledge of the cross-sections is crucial for such purpose. Unfortunately, the cross-section is sufficiently known only for Y-89( n,2n)Y-88 reaction. For higher orders of reactions there are almost no experimental data. Special attention was paid to the Y-89(n,3n)Y-87 reaction. The nuclei are produced, both in the ground state with half-life 79.8 hours and in the isomeric state with half-life 13.38 hours. The isomer decays mainly through the gamma transition to the ground state, the beta decay of the excited state is negligible within our accuracy. The cross-sections of both Y-87 productions were analyzed. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2018
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